Interesting, was that type one?
The problem (in my mind) is using the word “diabetes” as a catch all for suck a varied section of the population. If you look at it as a spectrum from well controlled to terrible, and for each type - so a younger type one who on the whole has non-diabetic levels and no other health problems other than a knackered pancreas would be a very different risk to a poorly controlled elderly type two with lots of complications, co-morbidities and golden syrup for plasma. Likewise a t2 with very good HbA1c would be a different level of risk to the T1 with a similar score who is in and out of hospital with DKA and constantly needing paramedics for severe hypos.
All the evidence I’ve seen so far (publications distributed to HCPs) suggests that we’re at no greater risk of catching the thing, but blood sugars would be a nightmare to keep sane if we do - and that’s where the problems lie. Hyperglycaemia can make an infection like this turn pretty nasty.